package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.atguigu.gulimall.product.vo.SupItemAttrGroupVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;
import org.springframework.util.StringUtils;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {


    @Autowired
    private AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long cateLogId) {

        String key = (String) params.get("key");
        //select * from pms_attr_group where catlog_id = ? and (attr_gourp_id = key or attr_group_name like %key%)
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        if(!StringUtils.isEmpty(key)){
            wrapper.and((obj)->{
                obj.eq("attr_group_id",key).or().like("attr_group_name",key);
            });
        }

        if (cateLogId == 0) {
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        } else {
            wrapper.eq("catelog_id",cateLogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);

        }


//        //select * from pms_attr_group where catlog_id = ? and (attr_gourp_id = key or attr_group_name like %key%)
//        String key = (String) params.get("key");
//
//        //构造QueryWrapper
//        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<>();
//
//        if (!StringUtils.isEmpty(key)) {
//            wrapper.and((obj) -> {
//                obj.eq("attr_group_id", key).or().like("attr_group_name", key);
//            });
//        }
//
//        //如果传过来的三级分类id为0，就查询所有数据
//        if (cateLogId == 0) {
//            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params), wrapper);
//            return new PageUtils(page);
//        } else {
//            wrapper.eq("catelog_id", cateLogId);
//            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params), wrapper);
//            return new PageUtils(page);
//        }


    }

    /**
     * 根据分类id查询出所有的分组以及这些组里面的属性
     *
     * @param catelogId
     * @return
     */
    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrByCatelogId(Long catelogId) {
        //1.查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));

        //2.查询所有属性
        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(group -> {
            AttrGroupWithAttrsVo attrGroupWithAttrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(group, attrGroupWithAttrsVo);

            List<AttrEntity> attrs = attrService.getRelationAttr(attrGroupWithAttrsVo.getAttrGroupId());
            attrGroupWithAttrsVo.setAttrs(attrs);
            return attrGroupWithAttrsVo;
        }).collect(Collectors.toList());
        return collect;
    }

    @Override
    public List<SupItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {

        //1.查出当前spu对应的所有属性的分组信息以及当前分组下的所有属性对应的值
        AttrGroupDao baseMapper = this.getBaseMapper();
        List<SupItemAttrGroupVo> vos = baseMapper.getAttrGroupWithAttrsBySpuId(spuId, catalogId);
        return vos;
    }

}
















